PI004
Understanding the complexity of the seafloor system: physical and biogeochemical processes interaction
Session ID#: 255858
Session Description:
Understanding natural seafloor complexity requires a holistic approach based on interdisciplinary collaboration involving geophysical, biological, chemical and oceanographic expertise. More widespread autonomous mapping capabilities sometimes assisted by AI guided automated data analysis have produced vast amounts of seafloor data comprising a variety of textures and benthic populations with often unprecedented resolution. However, the interaction in space and time and possible feedback mechanisms between different geo-biochemical processes are still far from being adequately understood.
As a result, present seafloor models include inherent uncertainties in the prediction of geotechnical seabed properties controlling e.g. load bearing, particle transport and textural drag, the acoustic responses as well as the origin and persistence of benthic communities. To respond to the increasing demand in the understanding of seafloor dynamics, we welcome contributions based on observational and modelling studies, investigating physical and biogeochemical process interaction, ecological adaptation to seafloor dynamics, impact of dominant processes, ecosystem monitoring elucidating spatial/regional and temporal variabilities, as well as seafloor and water column interaction.
The session aims at building a framework for future multidisciplinary research on the seafloor domain considered as one geo-bio system.
Co-Sponsor(s):
Index Terms:
0408 Benthic processes [BIOGEOSCIENCES]
0416 Biogeophysics [BIOGEOSCIENCES]
0439 Ecosystems, structure and dynamics [BIOGEOSCIENCES]
0460 Marine systems [BIOGEOSCIENCES]
Primary Chair: Sonia Papili, Royal Military Academy, Department of Mechanics, Brussels, Belgium
Co-Chair: Stephanie Dohner, Naval Research Lab Stennis Space Center, Ocean Sciences Division, Stennis Space Center, United States
Caught in the act: combined sensing approaches enable direct observation of bioturbation impacts on sediment bedform evolution (2014466)
William Clemo, Stephanie Dohner2, Carter DuVal3, Edward F Braithwaite III4 and Grant Lockridge4, (1)Naval Research Lab Stennis Space Center, Ocean Sciences Division, Stennis Space Center, United States, (2)National Research Council Postdoctoral Fellow, Stennis Space Center, MS, United States, (3)US Naval Research Laboratory, Ocean Sciences Division, Stennis Space Center, United States
Discovery of Off-Axis Hydrothermal Venting from the Seafloor at 9° 54’N East Pacific Rise, and Its 2021-2025 Geochemical Trends Leading Up to an Eruption (2021665)
Ms. Jada Siverand1, Esmira Bibaj2, Thibaut Barreyre3, Ross Parnell-Turner4, Daniel J Fornari5 and Jill McDermott2, (1)Lehigh University, Department of Earth and Environmental Sciences, Bethlehem, PA, United States, (2)Lehigh University, Department of Earth and Environmental Sciences, Bethlehem, United States, (3)IFREMER, Plouzané, France, (4)Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, United States, (5)Woods Hole Oceanographic Institution, Department of Geology and Geophysics, Woods Hole, MA, United States
Impacts of infauna and organic matter on seabed acoustic properties (2025728)
Kevin M Lee, University of Texas at Austin, Applied Research Laboratories, Austin, TX, United States, Megan S Ballard, University of Texas at Austin, Applied Research Laboratories, Austin, United States, Kelly M Dorgan, University of Texas at Austin, Marine Science Institute, Port Aransas, United States and Preston S Wilson, University of Texas at Austin, Walker Department of Mechanical Engineering and Applied Research Laboratories, Austin, United States
Use of X-ray cores for the characterization of surface sediment structure utilizing the presence/absence of identified benthic biota (2035483)
Grace Massey1, Chesna Cox2, Kelly M Dorgan3, Md Rejwanur Rahman4, Nina Stark4, Carl Friedrichs1 and Adrian Rodriguez-Marek5, (1)Virginia Institute of Marine Science, Gloucester Point, United States, (2)University of South Alabama / Dauphin Island Sea Lab, dauphin Island, United States, (3)University of Texas at Austin, Marine Science Institute, Port Aransas, United States, (4)Virginia Polytechnic Institute and State University, Blacksburg, United States, (5)Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
